甘薯抗旱鉴定及旱胁迫对甘薯叶片生理特性的影响

为挖掘抗旱甘薯基因资源,为甘薯抗旱育种及种植区域的拓宽提供科技支撑。本试验以全国各育种单位近年来选育的27个甘薯品种（系）为试验材料,在蒸发量远大于降雨量的新疆,设置正常灌水和干旱胁迫2个处理,采用抗旱指数法,对品种抗旱性进行鉴定评价。结果表明,根据抗旱指数及旱胁迫下鲜薯产量表现,筛选到抗旱指数高且产量高的种质材料6份（商薯9号、徐薯22、川薯20、湘薯15等）,并且抗旱性好的品种随着旱胁迫时间的持续,具有较高的脯氨酸（Pro）含量、过氧化物酶（POD）活性、较低的丙二醛（MDA）含量;在本试验中,各品种抗旱指数与叶片Pro含量呈极显著正相关（r=0.83）,与叶片POD活性呈显著正相关（r=...

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Published in西南农业学报 Vol. 29; no. 5; pp. 1052 - 1056
Main Author 周志林 唐君 金平 刘恩良 曹清河 赵冬兰 张安
Format Journal Article
LanguageChinese
Published 江苏师范大学生命科学学院,江苏徐州221116%江苏徐淮地区徐州农业科学研究所/农业部甘薯生物学与遗传改良重点实验室,江苏徐州,221131%新疆农业科学院粮食作物研究所,新疆乌鲁木齐,830091 2016
江苏徐淮地区徐州农业科学研究所/农业部甘薯生物学与遗传改良重点实验室,江苏徐州221131
Subjects
旱胁迫
甘薯
生理特性
鉴定
Sweetpotato
鉴定
旱胁迫
Drought resistance
Physiological characteristics
甘薯
生理特性
Identification
Online AccessGet full text
ISSN1001-4829
DOI10.16213/j.cnki.scjas.2016.05.011

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Summary:为挖掘抗旱甘薯基因资源,为甘薯抗旱育种及种植区域的拓宽提供科技支撑。本试验以全国各育种单位近年来选育的27个甘薯品种（系）为试验材料,在蒸发量远大于降雨量的新疆,设置正常灌水和干旱胁迫2个处理,采用抗旱指数法,对品种抗旱性进行鉴定评价。结果表明,根据抗旱指数及旱胁迫下鲜薯产量表现,筛选到抗旱指数高且产量高的种质材料6份（商薯9号、徐薯22、川薯20、湘薯15等）,并且抗旱性好的品种随着旱胁迫时间的持续,具有较高的脯氨酸（Pro）含量、过氧化物酶（POD）活性、较低的丙二醛（MDA）含量;在本试验中,各品种抗旱指数与叶片Pro含量呈极显著正相关（r=0.83）,与叶片POD活性呈显著正相关（r=0.65）,与叶片MDA含量呈极显著负相关（r=-0.78）。利用抗旱指数进行甘薯抗旱鉴定评价,是一种简单实用的方法,可以有效评价甘薯抗旱性。
Bibliography:ZHOU Zhi-lin ,TANG Jun ,JIN Ping ,LIU En-liang ,CAO Qing-he ,ZHAO Dong-lan ,ZHANG An （ 1. Xuzhou Institute of Agricultural Sciences of Xuhuai District/Key Laboratory of Biology and Genetic Improvement of Sweetpotato, Ministry of Agriculture, Jiangsu Xuzhou 221121, China;2. Institute of Food Crops, Xinjiang Academy of Agricultund Sciences, Xinjiang Urumqi 830091, China;3. School of Life Sciences, Jiangsu Normal University, Jiangsu Xuzhou 221116, China）
Sweetpotato; Drought resistance; Identification; Physiological characteristics
51-1213/S
The main purpose of this paper was to explore sweetpotato genetic resources and provide science-technology support for breeding sweetpotato and extending the planting area under drought condition. Twenty-seven sweetpotato varieties from the country were selected as tested materials in this experiments,drought resistant index was used to evaluate the drought resistance in rainfed and water irrigation treatments in Xinjiang. The result showed that according to drought resistant i
ISSN:1001-4829
DOI:10.16213/j.cnki.scjas.2016.05.011